High Temperature Humidity Transmitter
The HG808 High Temperature Humidity Transmitter is a rugged industrial-grade sensor designed for accurate temperature, humidity, and dew point monitoring in extreme high-temperature environments up to 200°C. Featuring RS485 Modbus RTU and 4-20mA output options, it seamlessly integrates with PLCs, SCADA systems, and industrial controllers. Its high-temperature-resistant stainless steel probe, waterproof and dustproof construction, and high measurement accuracy make it ideal for industrial drying, furnaces, HVAC systems, power plants, chemical processing, and environmental monitoring applications.
Key Highlights
- Supports RS485 Modbus RTU and 4-20mA output options
- High-accuracy sensing for reliable industrial monitoring
- Stainless steel probe designed for high-temperature applications
- Rugged construction suitable for harsh industrial environments.
Product Overview
The HG808 High-Temperature Humidity & Dew Point Transmitter is a professional-grade industrial monitoring solution engineered for accurate measurement of temperature, humidity, and dew point in demanding environments. Designed to withstand extreme temperatures up to 200°C, the HG808 delivers reliable performance in industrial drying systems, HVAC installations, environmental chambers, chemical processing plants, power generation facilities, and other harsh operating conditions. Featuring advanced sensing technology, the transmitter provides high-precision measurements with excellent long-term stability and fast response times.
Key Features & Capabilities
Enterprise-grade technology designed for mission-critical operations
High-temperature operation
Designed for reliable temperature and humidity monitoring in environments up to 200°C
Multiple output options
Supports RS485 Modbus RTU and 4-20mA outputs for easy system integration
Accurate sensing performance
Provides precise humidity and temperature measurements for industrial applications
Rugged stainless steel probe
High-temperature-resistant probe ensures durability in harsh operating conditions
Technical Specifications
Key technical details and performance specifications
| Specification | Details |
|---|---|
| Temperature Range | -40 ~ 200°C ( U-series ) / -50 ~ 150°C ( W-series ) / -40 ~ 150°C ( S-series ) |
| Dew Point Range | -60 ~ 80°C (U series ) / -60 ~ 80°C ( W-series ) / -80 ~ 80°C ( S-series ) |
| Humidity Range | 0 to 100%RH (recommended <95%RH) |
| Temperature Accuracy | ±0.1°C (@20°C) |
| Humidity Accuracy | ±2%RH (@20°C, 10~90%RH) |
| Dew Point Accuracy | ±2°C (± 3.6 °F) Td |
| Input & Output | RS485 + 4-20mA / RS485 + 0-5V / RS485 + 0-10V |
| Power Supply | DC 10V to 30V |
| Power Consumption | <0.5W |
| Analog Signal Output | Humidity + Temperature or Dew Point + Temperature; 4-20mA / 0-5V / 0-10V selectable |
| RS485 Digital Output | Temperature, Humidity, and Dew Point (simultaneous reading) |
| Resolution | 0.01°C / 0.1°C selectable |
| Communication Baud Rate | 1200, 2400, 4800, 9600, 19200, 115200 bps (default 9600 bps) |
| Acquisition Frequency | Fastest 1 second response; configurable according to PLC requirements |
| Byte Format | 8 data bits, 1 stop bit, no parity |
| Pressure Resistance | 16 bar |
| Operating Temperature | − 20°C ~ +60°C, 0%RH ~ 95%RH (non-condensing) |
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